var wbemFlagReturnImmediately = 0x10;
var wbemFlagForwardOnly = 0x20;

var objWMIService = GetObject("winmgmts:\\\\.\\root\\CIMV2");
var colItems = objWMIService.ExecQuery("SELECT * FROM Win32_Product", "WQL",
wbemFlagReturnImmediately | wbemFlagForwardOnly);

var enumItems = new Enumerator(colItems);
for (; !enumItems.atEnd(); enumItems.moveNext()) {
var objItem = enumItems.item();

WScript.Echo("Caption: " + objItem.Caption);
WScript.Echo("Description: " + objItem.Description);
WScript.Echo("Identifying Number: " + objItem.IdentifyingNumber);
WScript.Echo("Install Date: " + objItem.InstallDate);
WScript.Echo("Install Date 2: " + objItem.InstallDate2);
WScript.Echo("Install Location: " + objItem.InstallLocation);
WScript.Echo("Install State: " + objItem.InstallState);
WScript.Echo("Name: " + objItem.Name);
WScript.Echo("Package Cache: " + objItem.PackageCache);
WScript.Echo("SKU Number: " + objItem.SKUNumber);
WScript.Echo("Vendor: " + objItem.Vendor);
WScript.Echo("Version: " + objItem.Version);
WScript.Echo();
}